/// <summary>
/// Initialises the specified parent folder.
/// </summary>
/// <param name="parentFolder">The parent folder.</param>
public void Initialise(ShellItem parentFolder)
{
// If we're not double buffered, we want to be.
if (!DoubleBuffered)
{
DoubleBuffered = true;
}
// Clear children.
Items.Clear();
// Clear the map.
itemsToFolders.Clear();
// Work out the types to show.
var childTypes = ChildTypes.Files;
if (ShowHiddenFilesAndFolders)
{
childTypes |= ChildTypes.Hidden;
}
if (ShowFolders)
{
childTypes |= ChildTypes.Folders;
}
// Go through the children.
foreach (var child in parentFolder.GetChildren(childTypes))
{
// Do we need to create the icon for the item?
if (shellIconIndexesToCacheIconIndexes.ContainsKey(child.IconIndex) == false)
{
// Get the shell icon for the item.
var smallIcon = Icon.FromHandle(ComCtl32.ImageList_GetIcon(ShellImageList.GetImageList(ShellImageListSize.Small), child.IconIndex, 0));
var largeIcon = Icon.FromHandle(ComCtl32.ImageList_GetIcon(ShellImageList.GetImageList(ShellImageListSize.Large), child.IconIndex, 0));
// Create it and add it.
var mappedIndex = SmallImageList.Images.Count;
SmallImageList.Images.Add(smallIcon);
LargeImageList.Images.Add(largeIcon);
shellIconIndexesToCacheIconIndexes[child.IconIndex] = mappedIndex;
}
// Create an item.
var item = new ListViewItem
{
Text = child.DisplayName,
ImageIndex = shellIconIndexesToCacheIconIndexes[child.IconIndex]
};
// Map it.
itemsToFolders[item] = child;
// Insert the item.
Items.Add(item);
// Fire the event handler.
FireOnShellItemAdded(item);
}
}
static IEnumerable <TreeNode> EnumerateUnsafe(ShellItem shellFolder, ChildTypes childFlags,
TreeNode node, IDictionary <TreeNode, ShellItem> nodesToFolders)
{
var numer = shellFolder.GetChildren(childFlags, false).GetEnumerator();
while (numer.MoveNext())
{
ShellItem child = numer.Current;
// Create a child node.
var childNode = new TreeNode
{
Text = child.DisplayName,
ImageIndex = child.IconIndex,
SelectedImageIndex = child.IconIndex,
};
// Map the node to the shell folder.
nodesToFolders[childNode] = child;
// If this item has children, add a child node as a placeholder.
if (child.HasSubFolders)
{
childNode.Nodes.Add(string.Empty);
}
// Add the child node.
node.Nodes.Add(childNode);
yield return(childNode);
}
}